diff --git a/web/app/cad/craft/primitives/booleanOptionSchema.js b/web/app/cad/craft/primitives/booleanOptionSchema.js
new file mode 100644
index 00000000..f34ff11f
--- /dev/null
+++ b/web/app/cad/craft/primitives/booleanOptionSchema.js
@@ -0,0 +1,5 @@
+export default {
+  type: 'enum',
+  optional: true,
+  values: ['INTERSECT', 'SUBTRACT', 'UNION']
+};
\ No newline at end of file
diff --git a/web/app/cad/craft/primitives/box/boxOpSchema.js b/web/app/cad/craft/primitives/box/boxOpSchema.js
index 3ce5dc1c..4803e3da 100644
--- a/web/app/cad/craft/primitives/box/boxOpSchema.js
+++ b/web/app/cad/craft/primitives/box/boxOpSchema.js
@@ -1,3 +1,5 @@
+import booleanOptionSchema from '../booleanOptionSchema';
+
 export default {
   datum: {
     type: 'datum',
@@ -18,5 +20,6 @@ export default {
     type: 'number',
     defaultValue: 500,
     min: 0
-  }
+  },
+  boolean: booleanOptionSchema
 }
\ No newline at end of file
diff --git a/web/app/cad/craft/primitives/cone/coneOpSchema.js b/web/app/cad/craft/primitives/cone/coneOpSchema.js
index 1ee5f25a..cedade85 100644
--- a/web/app/cad/craft/primitives/cone/coneOpSchema.js
+++ b/web/app/cad/craft/primitives/cone/coneOpSchema.js
@@ -1,3 +1,5 @@
+import booleanOptionSchema from '../booleanOptionSchema';
+
 export default {
   datum: {
     type: 'datum',
@@ -18,5 +20,6 @@ export default {
     type: 'number',
     defaultValue: 250,
     min: 0
-  }
+  },
+  boolean: booleanOptionSchema
 }
\ No newline at end of file
diff --git a/web/app/cad/craft/primitives/cylinder/cylinderOpSchema.js b/web/app/cad/craft/primitives/cylinder/cylinderOpSchema.js
index 66ec8e03..552d7649 100644
--- a/web/app/cad/craft/primitives/cylinder/cylinderOpSchema.js
+++ b/web/app/cad/craft/primitives/cylinder/cylinderOpSchema.js
@@ -1,3 +1,5 @@
+import booleanOptionSchema from '../booleanOptionSchema';
+
 export default {
   datum: {
     type: 'datum',
@@ -14,5 +16,5 @@ export default {
     defaultValue: 250,
     min: 0
   },
-
+  boolean: booleanOptionSchema
 }
\ No newline at end of file
diff --git a/web/app/cad/craft/primitives/sphere/sphereOpSchema.js b/web/app/cad/craft/primitives/sphere/sphereOpSchema.js
index d133e674..e32b8d52 100644
--- a/web/app/cad/craft/primitives/sphere/sphereOpSchema.js
+++ b/web/app/cad/craft/primitives/sphere/sphereOpSchema.js
@@ -1,3 +1,5 @@
+import booleanOptionSchema from '../booleanOptionSchema';
+
 export default {
   datum: {
     type: 'datum',
@@ -9,4 +11,5 @@ export default {
     defaultValue: 250,
     min: 0
   },
+  boolean: booleanOptionSchema
 }
\ No newline at end of file
diff --git a/web/app/cad/craft/primitives/torus/torusOpSchema.js b/web/app/cad/craft/primitives/torus/torusOpSchema.js
index 8d3c370f..25f4463f 100644
--- a/web/app/cad/craft/primitives/torus/torusOpSchema.js
+++ b/web/app/cad/craft/primitives/torus/torusOpSchema.js
@@ -1,3 +1,5 @@
+import booleanOptionSchema from '../booleanOptionSchema';
+
 export default {
   datum: {
     type: 'datum',
@@ -14,5 +16,5 @@ export default {
     defaultValue: 50,
     min: 0
   },
-
+  boolean: booleanOptionSchema
 }
\ No newline at end of file